KX-TGA572S

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Service manual used with:

KX-TGA572S

 

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TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 4
1.1. For Service Technicians --------------------------------- 4
2 Warning-------------------------------------------------------------- 4
2.1. Battery Caution--------------------------------------------- 4
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 4
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
4.1. FHSS Description ----------------------------------------- 7
4.2. Explanation of Link Data Communication ----------10
4.3. Block Diagram (Handset_Main)-----------------------11
4.4. Block Diagram (Handset_RF Part)-------------------12
4.5. Circuit Operation (Handset)----------------------------13
4.6. Circuit Operation (RF Part)-----------------------------17
4.7. Circuit Operation (Charger Unit) ----------------------21
4.8. Signal Route -----------------------------------------------22
5 Location of Controls and Components ------------------24
5.1. Controls -----------------------------------------------------24
5.2. Displays -----------------------------------------------------24
6 Installation Instructions ---------------------------------------26
6.1. Setting Up the Handset ---------------------------------26
6.2. Battery Installation/Replacement ---------------------26
6.3. Battery Charge --------------------------------------------27
7 Operation Instructions-----------------------------------------28
7.1. Symbols Used in These Operating
Instructions -------------------------------------------------28
7.2. Programmable Settings ---------------------------------29
7.3. Troubleshooting for Accessibility Features---------33
8 Test Mode ----------------------------------------------------------34
8.1. Adjustment and Test Mode Flow Chart -------------34
9 Service Mode -----------------------------------------------------41
9.1. How to Clear User Setting------------------------------41
10 Troubleshooting Guide----------------------------------------42
10.1. Troubleshooting Flowchart -----------------------------42
10.2. How to Replace the Flat Package IC----------------51
10.3. How to Replace the LLP (Leadless Leadframe
Package) IC------------------------------------------------53
11 Disassembly and Assembly Instructions ---------------57
11.1. Disassembly Instructions -------------------------------57
11.2. Fix the LCD to the Main P.C. Board (Handset)----59
12 Measurements and Adjustments---------------------------60
12.1. Things to Do after Replacing IC ----------------------60
12.2. Handset Reference Drawing---------------------------61
12.3. Frequency Table ------------------------------------------62
13 Schematic Diagram---------------------------------------------63
13.1. For Schematic Diagram---------------------------------63
13.2. Schematic Diagram (Handset_Main)----------------64
13.3. Schematic Diagram (Handset_RF Part) ------------66
13.4. Schematic Diagram (Charger Unit) ------------------68
14 Printed Circuit Board-------------------------------------------69
14.1. Circuit Board (Handset_Main)-------------------------69
14.2. Circuit Board (Handset_RF Part) ---------------------71
14.3. Circuit Board (Charger Unit) ---------------------------72
15 Appendix Information of Schematic Diagram ---------73
15.1. CPU Data (Handset)-------------------------------------73
15.2. Explanation of IC Terminals (RF Part)---------------74
15.3. Terminal Guide of the ICs, Transistors and
Diodes -------------------------------------------------------77
16 Exploded View and Replacement Parts List -----------78
16.1. Cabinet and Electrical Parts (Handset)------------- 78
16.2. Cabinet and Electrical Parts (Charger Unit) ------- 79
16.3. Accessories and Packing Materials ----------------- 80
16.4. Replacement Parts List--------------------------------- 81



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